Here are example computational apps made with the CrossCompute framework.
ENV=~/.virtualenvs/crosscompute
virtualenv $ENV
source $ENV/bin/activate
pip install -U crosscompute
pip install -U crosscompute-integer
pip install -U crosscompute-text
pip install -U crosscompute-table
pip install -U crosscompute-image
pip install -U crosscompute-geotable
git clone https://github.com/crosscompute/crosscompute-examples
cd crosscompute-examples/add-integers
crosscompute run
crosscompute serve